Materials Literature
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Silicon carbide fiber-reinforced silicon carbide composite (SiC f /SiC) has been proposed as a satisfied material to accommodate an extreme and corrosive irradiation ambience such as first wall of fusion reactors. Chemical Vapor Infiltration (CVI) and Electrophoretic Deposition (EPD) are the processes those have been…
Surface acoustic wave sensors with grapheme/PANI nanocomposite sensitive films for detecting nitric oxide (NO) were fabricated and experimentally studied. Morphological characterization and functionalization of the sensing material were explored using SEM and FTIR, respectively. The study of sensor response compared f…
Small alterations in the molecular details may produce noticeable changes in the symmetry of the resulting phase behavior. It is possible to produce morphologies having different n-fold symmetries by manipulating molecular features such as chirality, polarity or anisotropy. In this paper, a two dimensional hard molecu…
Using core wires with Ti-B4C-C as core and Al as strip materials, Ti(C,N)-TiB2-Al2O3 composite ceramic coatings were prepared on 45 steel substrates by the reactive arc spray technology. The influence of spray voltage, current, gas pressure and distance on the coatings was discussed. The spray parameters were optimize…
A mixed-ligand iridium(I) complex with the imino-derivative of asymmetric β-diketone [Ir(cod)(Me i tfac)] (cod = C 8 H 12 , cyclooctadiene-1,5; Me i -tfac = CF 3 C(O)CHC(NMe)CH 3 , 1,1,1-trifluoro-4-methyliminopentanoato-2) is synthesized for the first time. The compound is obtained by the interaction of [Ir(cod)Cl] 2…
Five Gd 1-x Sr x Fe 0.8 Co 0.2 O 3- perovskites were synthesized using the glycine-nitrate process. The compounds were evaluated as solid oxide fuel cell cathodes using cone-shaped electrodes and electrochemical impedance spectroscopy. It was shown that the electrochemical activity depended on the amount of strontium…
In article 1704233, Xiaojia Wang and co-workers demonstrate that single crystal La0.5Sr0.5CoO3−δ films possess a glass-like thermal conductivity through their plane. A combination of oxygen vacancies, Sr distribution, size effect, and weak electron/phonon coupling causes this effect. This discovery opens possibilities…
Two types of manganese ferrite nanoparticles, namely MF-SA and MF-CHI, have been synthesized solvothermally from the synthesis systems containing sodium alginate and chitosan, respectively. Both MF-SA and MF-CHI showed well crystalline nature based on the XRD and TEM measuremants. The larger saturation magnetization v…
Wetting steel surfaces with liquid aluminum without the use of flux can be enabled by the presence of a zinc-coating. The mechanisms behind this effect are not yet fully understood. Research results on single aluminum droplets falling on commercial galvanized steel substrates revealed the good wetting capability of zi…
We use adhesion model based on Monte Carlo computer simulation to study adsorption of core-shell spherical particles of polydisperse sizes onto sinusoidally corrugated substrates with predefined amplitude (A) and wavelength (λ). The core-shell particles comprise a hard inner core and an adhesive shell that mediates in…
A electrostrictive ceramics were designed by introducing Bi(Mg0.5Ti0.5)O3 into 0.875Bi0.5Na0.5TiO3-0.125BaTiO3 with tetragonal structure. All the specimens prepared by a conventional solid sintering technique exhibit the excellent sintering ability with a high relative density over 97%. It is found that, as BMT added,…
Fusion reactors are generating energy by nuclear fusion between deuterium and tritium. In order to evacuate the high gas throughputs from the plasma exhaust, large pumping speed systems are required. Within the European Fusion Programme, the Karlsruhe Institute of Technology (KIT) has taken the lead to design a three-…
The introduction of accessible unsaturated isothiuronic salts in standart sulphate electrolyte for nickel plating with the aim of electrochemical obtaining bright nickel coating is considered. The previous bench tests with the using of Hull's cell provided a possibility to determine the needed concentration of additiv…
It is established that excess oxygen content δ influences the exchange bias (EB) in layered GdBa-Co2O5 + δ cobaltite. The EB effect arises in p-type (δ > 0.5) cobaltite and disappears in n-type (δ < 0.5) cobaltite. The main parameters of EB in GdBaCo2O5.52(2) polycrystals are determined, including the field and temper…
The microwave synthesis of quantum dots (QDs) based on zinc and manganese sulfides and oxides in a water-ethanol medium is proposed. The sample synthesized is characterized by X-ray diffraction (XRD), photoluminescence, X-ray absorption near edge structure (XANES), and extended X-ray absorption fine structure (EXAFS)…
Nuclear and physical properties (activation and transmutation of elements) of BN and Al 2 O 3 dielectric materials subjected to neutron irradiation for up to 5 years in Russian fast (BN-600) and fusion (DEMO-S) reactors were calculated using the ACDAM-2.0 software complex for different post-irradiation cooling times (…
The kinetic problem of finding the rf conductivity and Hall constant of a thin metal film placed in a transverse steady magnetic field and a longitudinal variable electric field has been considered. It has been assumed that electrons diffusely reflect from the upper and lower surfaces of the film. No limitations have…
Dielectric loss quantifies the dielectric materials inherent dissipation of electric energy in electric power systems. This paper focuses on controlling in the dielectric loss behavior of the Polyvinyl Chloride (PVC); it has been widely used as insulators in electrical power systems and power devices. Nanocomposites s…
The influence of hollow aluminosilicate microspheres on the efficiency of elastomeric thermoprotective materials based on ethylene—propylene rubber is considered. The introduction of hollow aluminosilicate microspheres, even in small quantities, decreases the density and heat conductivity of such materials, with no lo…
The structure of two lanthanide (Ln = Nd, Ho) complexes with dipivaloylmethane (Hdpm) is studied at 150(2) K by single crystal X-ray diffraction. The crystallographic data are as follows for [Nd(dpm) 3 ] 2 : space group P 2 1 / n , a = 12.3281(3) Å, b = 27.8118(6) Å, с = 21.9035(5) Å, β = 105.241(1)°, V = 7245.8(3) Å…